Finding the Third Proportional to 172,828.69 and 359,452.69

Step by Step Solution

1. Step 1: Write the proportion equation
   172,828.69 : 359,452.69 = 359,452.69 : x
2. Step 2: Convert to fraction form
   172,828.69/359,452.69 = 359,452.69/x
3. Step 3: Cross multiply
   172,828.69x = 359,452.69 × 359,452.69
4. Step 4: Simplify right side
   172,828.69x = 129,206,234,550.97
5. Step 5: Solve for x
   x = 129,206,234,550.97/172,828.69
6. Step 6: Final answer
   x = 747,597.15